Home / 207,917,642.25-286,928,613.80-115,099,700.13

Finding the Fourth Proportional to 207,917,642.25, 286,928,613.80 and 115,099,700.13

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Solution

The fourth proportional to 207,917,642.25, 286,928,613.80 and 115,099,700.13 is: 158,838,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,642.25 : 286,928,613.80 = 115,099,700.13 : x
  2. Step 2: Convert to fraction form
    207,917,642.25/286,928,613.80 = 115,099,700.13/x
  3. Step 3: Cross multiply
    207,917,642.25x = 286,928,613.80 × 115,099,700.13
  4. Step 4: Simplify right side
    207,917,642.25x = 33,025,397,406,521,080
  5. Step 5: Solve for x
    x = 33,025,397,406,521,080/207,917,642.25
  6. Step 6: Final answer
    x = 158,838,841.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.